Event: SCL Div 4

Opponent Rating Result
John E Davis 0 0 - 1
Andrei Rusu 0 0 - 1
Maha Chandar 0 0 - 1
N George 0 0 - 1
Peter A Beldaus 0 0 - 1
James Hough 0 0 - 1
Ken Moore 0 0 - 1
John Comber 0 0 - 1
Hayden Seah 0 0 - 1
Ken Wyld 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 10)) / 10)

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